test-pthread_sigmask2.c

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Hash : 0771cac8
Author :
Date : 2023-09-03T18:14:53

same-inode, stat-size: support pointers too

Add functions and macros so that we can test pointers to struct
stat as well as plain struct stat.  This lets coreutils deal with
structs that are only partly initialized, without relying on
undefined behavior.
* NEWS: Mention this.
* doc/posix-headers/sys_stat.texi, doc/stat-size.texi:
Mention this and modernize.
* lib/at-func2.c (at_func2):
* lib/fts.c (same_fd):
* lib/rename.c (rpl_rename) [RENAME_HARD_LINK_BUG]:
* lib/same-inode.c: New file.
* lib/same.c (same_nameat):
* lib/term-style-control.c (activate_term_style_controller):
Prefer psame_inode (a, b) to SAME_INODE (*a, *b).
* lib/hash-triple-simple.c (triple_compare_ino_str):
* lib/hash-triple.c (triple_compare):
Prefer PSAME_INODE (a, b) to SAME_INODE (*a, *b).
psame_inode is not suitable since the args are not struct stat *.
* lib/same-inode.h: Check that config.h is included first.
(SAME_INODE_INLINE, PSAME_INODE): New macros.
(SAME_INODE): Reimplement in terms of PSAME_INODE.
(psame_inode): New function.
* lib/stat-size.h (STP_BLKSIZE, STP_NBLOCKS): New macros.
(ST_BLKSIZE, ST_NBLOCKS): Use them.
* lib/term-style-control.c (log_signal_handler_called):
Always define as a function, to pacify -Wunused*.
* modules/canonicalize-lgpl-tests (Files): Add m4/musl.m4.
(Depends-on): Call gl_MUSL_LIBC.
* modules/same-inode (Files): Add same-inode.c.
(Depends-on): Add extern-inline, stdbool.
(lib_SOURCES): New macro.
* tests/test-binary-io.c, tests/test-canonicalize-lgpl.c:
* tests/test-canonicalize.c, tests/test-cloexec.c:
* tests/test-dup-safer.c, tests/test-dup2.c, tests/test-error.c:
* tests/test-fcntl.c, tests/test-fdopendir.c, tests/test-fgetc.c:
* tests/test-fputc.c, tests/test-fread.c, tests/test-fstat.c:
* tests/test-fstatat.c, tests/test-ftruncate.c:
* tests/test-fwrite.c, tests/test-getcwd.c:
* tests/test-getdtablesize.c, tests/test-isblank.c:
* tests/test-linkat.c, tests/test-lock.c, tests/test-lstat.h:
* tests/test-malloc-gnu.c, tests/test-openat.c:
* tests/test-pthread-thread.c, tests/test-pthread_sigmask1.c:
* tests/test-pthread_sigmask2.c, tests/test-ptsname.c:
* tests/test-ptsname_r.c, tests/test-raise.c:
* tests/test-realloc-gnu.c, tests/test-rwlock1.c:
* tests/test-sigprocmask.c, tests/test-snprintf.c:
* tests/test-stat.h, tests/test-term-style-control-hello.c:
* tests/test-term-style-control-yes.c, tests/test-thread_create.c:
* tests/test-unlinkat.c, tests/test-vasnprintf.c:
* tests/test-xalloc-die.c:
Adjust to these changes, and fix some warnings elicited by
-Wall -Wextra that I ran into while testing.
* top/maint.mk (sc_prohibit_stat_st_blocks): Mention STP_NBLOCKS.

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tests/test-pthread_sigmask2.c

/* Test of pthread_sigmask in a multi-threaded program.
   Copyright (C) 2011-2023 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

/* Written by Bruno Haible <bruno@clisp.org>, 2011.  */

#include <config.h>

#include <signal.h>

#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>

#include "macros.h"

#if USE_POSIX_THREADS || USE_ISOC_AND_POSIX_THREADS

static pthread_t main_thread;
static pthread_t killer_thread;

static void *
killer_thread_func (_GL_UNUSED void *arg)
{
  sleep (1);
  pthread_kill (main_thread, SIGINT);
  return NULL;
}

static volatile int sigint_occurred;

static void
sigint_handler (_GL_UNUSED int sig)
{
  sigint_occurred++;
}

int
main ()
{
  sigset_t set;

  signal (SIGINT, sigint_handler);

  sigemptyset (&set);
  sigaddset (&set, SIGINT);

  /* Check error handling.  */
  /* This call returns 0 on NetBSD 8.0.  */
#if !defined __NetBSD__
  ASSERT (pthread_sigmask (1729, &set, NULL) == EINVAL);
#endif

  /* Block SIGINT.  */
  ASSERT (pthread_sigmask (SIG_BLOCK, &set, NULL) == 0);

  /* Request a SIGINT signal from another thread.  */
  main_thread = pthread_self ();
  ASSERT (pthread_create (&killer_thread, NULL, killer_thread_func, NULL) == 0);

  /* Wait.  */
  sleep (2);

  /* The signal should not have arrived yet, because it is blocked.  */
  ASSERT (sigint_occurred == 0);

  /* Unblock SIGINT.  */
  ASSERT (pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0);

  /* The signal should have arrived now, because POSIX says
       "If there are any pending unblocked signals after the call to
        pthread_sigmask(), at least one of those signals shall be delivered
        before the call to pthread_sigmask() returns."  */
  ASSERT (sigint_occurred == 1);

  /* Clean up the thread.  This avoid a "ThreadSanitizer: thread leak" warning
     from "gcc -fsanitize=thread".  */
  ASSERT (pthread_join (killer_thread, NULL) == 0);

  return 0;
}

#else

int
main ()
{
  fputs ("Skipping test: POSIX threads not enabled\n", stderr);
  return 77;
}

#endif

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kc3-lang/gnulib/tests/test-pthread_sigmask2.c

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tests/test-pthread_sigmask2.c